Finding the Fourth Proportional to 12,003.98, 18,006.93 and 3,238.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.98 : 18,006.93 = 3,238.76 : x
2. Step 2: Convert to fraction form
   12,003.98/18,006.93 = 3,238.76/x
3. Step 3: Cross multiply
   12,003.98x = 18,006.93 × 3,238.76
4. Step 4: Simplify right side
   12,003.98x = 58,320,108.41
5. Step 5: Solve for x
   x = 58,320,108.41/12,003.98
6. Step 6: Final answer
   x = 4,858.40